The first household refrigerators cost about $16,000, in today's money!
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You can tape a small mirror onto a cone speaker, play music and shine a laser on to the mirror and the reflection will look like a laser light show on your wall.
102
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
‘Tree shaping’ is the art of growing trees and roots into things like bridges, chairs, “people trees”, ladders, fences, jungle gyms, tunnels, and, theoretically, could even be used to grow homes.
3
The largest hotel suite in the world is located 22 stories under the surface in the Grand Canyon Caverns. One night for two people in this 65 million year old cave is $700.
4
97% of all paper money in the US contains traces of cocaine.
93
Sunflowers can be used to clean up radioactive waste.
17
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14